up-sequence-diagrams

Convert Unified Process use cases into Mermaid System Sequence Diagrams.

3|Updated Mar 31, 2026

Search Tags:#documentation #mermaid #software-engineering #use-cases #sequence-diagrams #ssd

Ready to run

npx skills add https://github.com/apolosan/unified_process_pi_extension --skill up-sequence-diagrams

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: up-sequence-diagrams
Source: https://github.com/apolosan/unified_process_pi_extension/tree/main/skills/up-sequence-diagrams
Command: npx skills add https://github.com/apolosan/unified_process_pi_extension --skill up-sequence-diagrams

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Generates System Sequence Diagrams to model interactions between actors and the system, translating use-case steps into system operations and visualizing data flows.

Core Features & Use Cases

Converts object-oriented Unified Process use cases into Mermaid sequence diagrams.
Outputs documentation files (docs/up/04-dss/ and docs/up/04-system-operations.md) for traceability.
Uses the provided templates to ensure consistent structure and readability across SSDs.

Quick Start

Load all relevant use cases from docs/up/03-use-cases/ and run the SSD generation workflow to produce the diagrams.

Frequently Asked Questions about up-sequence-diagrams

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I generate System Sequence Diagrams from Unified Process use cases?▼

You can generate System Sequence Diagrams by loading use cases from docs/up/03-use-cases and applying the provided template to translate use-case steps into system operations and Mermaid sequence diagrams.

What is a System Sequence Diagram used for in software engineering?▼

A System Sequence Diagram visualizes interactions between actors and the system, translating use-case steps into system operations to establish clear visual contracts within software engineering workflows.

Can I use Mermaid to visualize actor-system interactions for use cases?▼

Yes, you can use Mermaid to visualize actor-system interactions by converting Unified Process use cases into Mermaid sequence diagrams, generating both visual outputs and traceable documentation files.

How do I convert use cases into system operations documentation?▼

You convert use cases into system operations documentation by running the SSD generation workflow, which outputs both the Mermaid sequence diagrams and a dedicated system operations file for full traceability.

What format do System Sequence Diagrams need to be in for traceable documentation?▼

System Sequence Diagrams for traceable documentation are output in Mermaid format to the docs/up/04-dss/ directory alongside a system operations file, ensuring consistent structure and readability across SSDs.

Do I need specific templates to create System Sequence Diagrams from use cases?▼

Yes, you need the provided dss-template.md template to create System Sequence Diagrams from use cases, ensuring consistent structure and readability across all generated Mermaid diagrams.